James hardie recommends that you consult with your design professional if you have questions regarding.
Rain screen behind hardiplan lapp siding.
Detailing a rain screen wall furring strips space the clapboards away from the wall creating a vent space that helps to dry the back of the siding.
Layered tar paper and flashings behind the furring strips create what is called a drainage plane which alone would protect the house from water even ifthere were no siding.
Rainscreen behind hardie panel b amp b hardy plank came out with a new furring strip.
The devil is in the details in this case the air intake and flow behind the skirt board.
The air space behind the shingles allow moisture that soaks in the front of the shingles to dry to the backside as well as the front.
A predictable rainscreen air gap behind fiber cement sidings like hardie plank and hardie shingle adds durability to the exterior.
We re using benjamin obdyke home slicker a plastic mesh matrix that spaces siding about 1 4 in.
Off the wall surface.
My question is why is james hardy requiring these furring strips with their new panel and not their normal lap siding.
An air gap between the siding and sheathing.
Rainscreen between flat to wall siding and the water resistive barrier as a best practice.
It kind of seems that they should spec furring strips for both.
To rainscreen or not to rainscreen if you are worried about the hardi product breaking which can happen you might see if you can find lp smartside siding in your area.
James hardie s installation instructions do not specify a rainscreen for hardieplank on any type of construction.
Sidings like hardie board lp smartside and natural cedar benefit from a rainscreen air gap between the siding and the housewrap.
Corrugated lath strip crea.
Mti s corrugated lath strip creates a capillary break that prevents entrapped water and promotes airflow to dry out the siding and substrate.
Tips for durable fiber cement exteriors.
It is used for its new commercial lap siding panel.